Paper guiding and holding mechanism for accounting machines



Oct. 1, 1940. w ANDERSON 2,216,608

PAPER GUIDING AND HOLDING MECHANISM FOR ACCOUNTING MACHINES Filed Dec.-30, 1938 2 Sheets-Sheet 1 INVENTOR.

WALTER A. ANDERSON ATTORNEY Oct. 1, 1940. I w A, ANDERSON 2,216,608

PAPER GUIDING AND HOLDING MECHANISM FOR ACCOUNTING MACHINES Filed Dec.30, 1938 2 Sheets-Sheet 2 lll INVENTOR WALTER )LANDERSON t ATTO R N EYPatented Oct. 1, 1940 UNITED STATES PAPER GUIDING AND HOLDING MECHA-NISM FOR ACCOUNTING MACHINES Walter A. Anderson, Bridgeport, Conm,assignor 2;; to Underwood Elliott Fisher Company,

York, N. Y., a corporation of Delaware New Application December 30,1938, Serial No. 248,427

1 Claim. 1 (c1. 197-139) This inventionrelates to paper carriages foraccounting machines, and more particularly to means for guiding andholding the paper around the platen.

Frequently during insertion of rear fed paper around the platen, thepaper catches on parts of the carriage. 7

It is an object of this invention, therefore, to provide a simple,inexpensive and effective means for insuring smooth feeding of worksheets around the platen.

Another object is to provide such a means, that is readily adjustablelaterally of the platen to suit forms of different widths, and alsoadjustable toward or away from the platen to accommodate insertion ofmultiple forms.

With these and incidental objects in view, the invention consists incertain novel features of construction and combinations of parts, the

essential elements of which are set forth in appended claim, andpreferred embodiments of which are hereinafter described with referenceto the drawings which accompany and form part of the specification.

In the drawings:

Figure 1 is a perspective View of a carriage embodying the invention,

Figure 2 is a right side elevation showing a paper guide band adjustedto receive and hold a single Work sheet,

Figure 3 is a view similar to Figure 2, but with the band adjusted toaccommodate a plurality of work sheets,

Figure 4 is an exploded perspective of the ad- 35 justable upperattaching means,

Figure 5 is a fragmental detail perspective of the adjustable lowerattaching means,

Figure 6 is a fragmental perspective showing a modified form of theinvention, and

Figure '7 is a detail sectional view of this modified form.

The invention is illustrated in connection with the type of carriageused on the machine disclosed in the application of Oscar J. Sundstrand,45 Serial No. 581,800, filed December 18, 1931, and

is adaptable for use on the type of carriage disclosed in United StatesPatent No. 2,060,954, issued to Oscar J. Sundstrand on November 17,1936, or on that disclosed in United States applications of Walter A.Anderson, Serial Nos. 92,164 and 192,675, filed July 23, 1936, andFebruary 26, 1938, respectively.

Carriage in general 55 Referring to Figure 1, the carriage is mountedfor movement along a track I. As the carriage moves from right to left,it is stopped in various columnar positions so that type bars (notshown) on the accounting machine may print on work sheets fed around aplaten 2. The mechanism for tabulating the carriage from column tocolumn and for returning it to its initial position is disclosed inapplication Serial No. 581,800. The plat-en may be rotated manually byknobs 3 secured to each'end of a platen shaft 4, and may be rotatedautomatically during operations of the machine by a feed pawl (notshown) cooperating with teeth on a rachet wheel 5 secured to shaft 4.The pawl and its operating mechanism is disclosed in Patent No.2,060,954.

Mechanism for guiding and holding the paper In introducing the paper, itis passed downwardly over a paper table 6 suitably secured between thecarriage side walls and having its lower edge terminating a shortdistance in back of the platen (Figures 2 and 3). The lower edge of thepaper engages between the platen and paper feed rolls I mounted incradles such as 8 pivoted on brackets such as 9 secured to the rear sideof paper table 6. Rolls 1 are tensioned clockwise against the platen bysprings such as I0. Upon a slight turn of the platen by knobs 3, thepaper is advanced between rollers I and platen 2, and upon furtherrotation of the platen is guided under and around the platen by bands II, preferably formed of narrow, thin, and yielding material. Bands IIencircle the lower and forward portions of the platen and are secured attheir lower ends to hooks I2 (Figure 2) slidably embracing a rod I3secured between the carriage side walls. Each hook has a slot I4 inwhich is inserted a spring ring I5 that frictionally embraces shaft I3to hold the bands in their laterally adjusted positions.

The upper ends of the bands fit within slots I6 provided in brackets I!(Figure 4) and are each provided with a pair of slots I8 through whichpass screws I9 that thread into apertures 20 in brackets I1. Plates 2|of tempered spring material are secured on brackets I1 by rivets 22, andare each formed at their upper ends with lugs such as 23 and at theirlower ends with clips such as 24 that embrace the upper and lower edgesof a pap-er tear plate 25 (Figure 2). The tear plate is secured on a rod26 pivoted at its opposite ends in the carriage side walls, and isprovided at each end of its lower edge with a stud 21 that rests againsta paper guide plate 28. The guide plate is provided at its opposite endswith rearwardly projecting lugs 30 that rest against paper table 6.Upstanding ears 29 on the ends of plate 28 are pivoted on rod 26 adjacent the carriage side plates. Lugs 30 and studs 21 serve to hold theplates in spaced relation and at proper angles (Figures 2 and 3) fordeflecting the paper upwardly as it leaves the platen.

When single forms are to be inserted around the platen, bands II areadjusted by the screw and slot adjustment above described so that theclearance between the inner sides of the bands and the platen is justsufficient to permit smooth, easy insertion of a single sheet, as shownin Figure 2. When it is desirable to perform operations requiring jointinsertion of several sheets, the bands are adjusted in the followingmanner. Brackets I! are removed from tear plate 25 by slightlydepressing clips 24, then screws H) are loosened and the brackets slidupwardly in slots 16 a sufiicient' distance so that when the screws areretightened and the brackets replaced on the tear plate, the clearancebetween the platen and thebands accommodates the number of sheets to beinserted. Adjustment of the bands laterally, to suit the requirements ofdifferent width forms, is readily accomplished by detaching brackets l1,sliding the bands along rod l3 in accordance with the width of the formto be used, and replacing the brackets on the tear plate at the newlocations.

In the modified form of the invention shown in Figure 6, the onlyvariation in the structure from that above described is in the method ofattaching the lower ends of the bands to rod l3, and in the provision ofmeans which permits simultaneous adjustment of the bands around theplaten. In this form of the invention, the lower ends of the bands areriveted to collars such as 3|, which are slidable on the shaft butfeathered to it for rotation therewith. Upon rotation of shaft I3, eachof the bands are simultaneously moved toward or away from the platen toprovide the necessary clearance in accordance with the number of formsto be inserted. In this form of the invention, shaft l3 extends throughthe right carriage side wall and has fixed on its end a knob 32 formanual adjustment. A serrated disk 34, also fixed on the "shaft adjacentthe right side wall, cooperates witha spring detent 35 to hold the bandsin adjusted position.

While the form of mechanism herein shown and described isadmirablyadapted to fulfill the objects primarily stated, it is to beunderstood that it is not intended to confine the invention to the oneform of embodiment herein disclosed, for it is susceptible of embodimentin various forms, all coming within the scope of the claim whichfollows.

What is'claimed is: f In a paper carriage, aplaten, a rotatable rodunder the platen, a tear plate above the platen, a plurality of paperguides lying around the platen and having their upper ends supported onthe tear plate, their lower ends being connected'to the rotatable rod sothat rotation of the rod moves the guides toward or away from the platento accommodate varying thicknesses of formsinserted around the platen,and manipulative means for rotating the rod.

WALTER A. ANDERSON.

